39results about How to "Fast combustion reaction" patented technology

The invention discloses a combustion type steel component oriented cutting device. A bottom support sleeve, a top plate with a circular cross section, a cutting agent layer and an igniting agent layerare arranged in a charging barrel in sequence from bottom to top; a fixing device for fixing a top cover on objects to be punched is arranged on the radial peripheral surface of the top cover; a cylindrical through hole is formed in the center of the top cover; a cylindrical insulation plug is mounted in the through hole; the insulation plug is vertically provided with a top sleeve; two ignitionelectrodes are mounted in the center of the insulation plug, and are connected with electric ignition devices; and the top cover is provided with multiple punching holes. The cutting device is high inenergy density, high in combustion temperature, high in cutting speed and suitable for quick emergency hot cutting and underwater cutting of various steel structural parts under the conditions without electricity, gas and equipment in the fields or battlegrounds.

The invention provides an environmental-friendly coal-saving agent for a cement shaft kiln, comprising the following raw materials by weight portion: 3-7 portions of a coal combusting low-temperature modifying agent, 2-6 portions of a compound sulphur-fixing agent, 0.5-0.96 portion of a combusting inductive agent, 3-7 portions of a raising agent, 56-96 portions of a combusting poising agent, and 5-15 portions of a highly-efficient sulphur-fixing agent. The coal combusting low-temperature modifying agent can be potassium permanganate, potassium chlorate, potassium perchlorate, sodium chlorate, sodium nitrate and the like; the compound sulphur-fixing agent can be sodium carbonate, calcium oxide and the like; the raising agent can be waste liquor of paper mill containing Na or / and Ca sulphonate and the like; and the combusting poising agent can be a chemical waste reducing substance containing sodium chloride and the like. The method solves the problems of environmental pollution and resource waste in the prior art, uses compatibility of multiple chemical raw material of 6-10 percent and chemical waste to prepare the coal-saving agent with small dosage and fast effect to be added to the production of the cement shaft kiln in trace quantity, and has the advantages of resource conservation by using waste, coal conservation and consumption reduction, and reduction of dust and SO2 discharge and environmental pollution.

The invention provides a micro double-bed solid fuel decoupling combustion reaction dynamic analyzer which comprises a fuel pyrolytic reaction generation device, a residual coke combustion reaction generation device, a double-bed high-temperature coupling device, a gas path device and an analysis test device, wherein solid fuel is firstly pyrolyzed under an inert atmosphere in a micro gas flow bed; then residual cokes enter the micro gas flow bed for combustion test under an air atmosphere; a quick gas detector is used for judging a reaction mechanism by measuring a generation sequence and a generation quantity characteristic of gas components in a fuel pyrolysis process and a coke combustion process, so that reaction dynamic parameters can be calculated. According to the micro double-bed solid fuel decoupling combustion reaction dynamic analyzer, the combustion dynamic parameters of the solid fuel can be tested through direct decoupling combustion through independent and quick switching of the atmospheres and the temperature; the pyrolyzed residual cokes are directly subjected to the combustion test without a cooling process; the temperature rising rates of the gas flow bed and a fluidized bed are high, so that a combustion condition in an actual boiler can be well simulated; the measured reaction dynamic parameters are close to intrinsic reaction dynamic parameters.

The invention belongs to the technical field of methanol fuel for vehicles and in particular relates to a methanol gasoline additive and a preparation method thereof. The structural formula is as shown in the specification. According to the methanol gasoline additive and the preparation method thereof disclosed by the invention, the methanol gasoline additive and methanol are easy to dissolve, dispersion is uniform, the stability is excellent, and no other special process needs to be increased for treatment; due to polyhydroxy groups and imidazole groups contained in the additive structure, the water resistance and metal corrosion resistance of methanol gasoline can be greatly improved, chain paraffin is capable of resisting low-temperature phase separation, low-temperature easily startingis realized, and air resistance is avoided at a high temperature; and the methanol gasoline additive is simple and easily operable in preparation method, low in cost and energy consumption, environment-friendly, pollution-free and suitable for industrial production.

The invention discloses an over-fire air distribution manner in a front and back wall opposed firing boiler; a boiler firing method is in the form of front and back wall opposed firing, and over-fire air is fed by using a tangent circle method. The front and back wall opposed firing boiler comprises a front and back wall opposed firing boiler; with a symmetric central line of a long edge of the boiler as boundary, the over-fire air is divided into two groups; 4-5 over-fire air nozzles are arranged in each group; central lines of the over-fire air sprayed by the over-fire air nozzles in each group are tangential to the same imaginary ellipse; rotation directions of the ellipses in the two groups are reverse to each other; and one ellipse rotates in an anticlockwise direction and the other ellipse rotates in a clockwise direction. The over-fire air is high speed direct current over-fire air; and the over-fire air nozzles swing up and down and from left to right in a full-swinging form. The over-fire air distribution manner in the front and back wall opposed firing boiler, disclosed by the invention, is beneficial for enhancing the mixing of the over-fire air and rising flue gas and increasing the travel of the flue gas and prolonging the staying time of a fuel in the oven, and has the advantages that NOx emission of the boiler is obviously reduced and the increase of carbon content in boiler fly ash and the increase of the temperature-reduction water quantity are effectively suppressed.

The invention discloses an integrated technique of desulfidation, denitration and mercury solidification in a boiler stove, and the invention injects modified MnO2 (manganese dioxide) into a boiler furnace and synthetically removes sulfur dioxide, nitrogen oxide and mercury by using the strong oxidizing property of manganese oxide; meanwhile, as the reaction of removing various infectants with modified MnO2 (manganese dioxide) is favorable for the conglobation of micro dust particles, the method can also reduce the exhaustion of inhalable particulates of PM2.5 from boilers.

The invention relates to a high-activity compound modified additive of methanol gasoline for an automobile. The additive is prepared from the following components in percentage by weight: 12% of ethanol as a solvent, 0.1% of 2-methyl-1-butanol as an antidetonant, 0.5% of sulfurized calcium alkyl as an adjustor, 1.5% of triethanolamine as an engine carbon deposition preventer and an anticorrosive agent, 2.5% of methylal as a combustion improver, 59% of normal butanol as an active mutual solvent, 0.1% of 3-methyl-1-butanol as a synthetic solvent, 10% of 2-methyl-1-propanol as a synthetic solvent, 10% of normal propyl alcohol as a synthetic solvent, 0.1% of ethyl tert butyl ether as an antidetonant, 2% of 1-phenyl-5-mercapto-tetrazole as a corrosion inhibitor, 1% of 2-mercapto benzimidazole as a corrosion inhibitor, 20.6% of nano TiO as a protective coating and 0.6% of 2, 6-ditert-butyl p-cresol as an antioxidant. The additive can be widely applied to additives of methanol and methanol motor gasoline.

The invention relates to the technical field of gas stove fire distributors, and particularly discloses a fire distributor with two variable fire hole airway characteristics. The spacing between the top of a second comb tooth groove and the root of the second comb tooth groove gradually widens, the spacing between the top of a first comb tooth groove and the root of the first comb tooth groove gradually narrows, the gas flowing out of a second gas outlet has low pressure and low flow rate, the gas flowing out of a first gas outlet has high pressure and high flow rate, the mixed gas with lowerpressure and low flow rate burns near the inner wall of the fire distributor, the mixed gas with high pressure and high flow rate burns in a combustion chamber away from the fire distributor, the combustion flame is in the shape of mountain peaks and valleys and is in a high-low staggered form, and the high-low staggered flame and the swirling resident heat are intertwined and integrated more closely. The contact strength and contact surface between the mixed gas flow and the heat released by combustion are increased, the heat utilization efficiency is high, the combustion reaction space utilization rate of the combustion chamber is higher, and thus the combustion reaction speed, combustion reaction temperature and reaction intensity are improved.

The invention belongs to the technical field of methanol fuel for vehicles, and specifically relates to anti-corrosion and water-proof methanol gasoline. The anti-corrosion and water-proof methanol gasoline is prepared from the following raw materials in percentage by mass: 30 to 75 percent of base oil, 10 to 15 percent of component oil, 10 to 50 percent of methanol and 1 to 10 percent of an additive, wherein the base oil is one of national standard gasoline No.90, national standard gasoline No.93 and national standard gasoline No.97. The anti-corrosion and water-proof methanol gasoline disclosed by the invention has the advantages that the intersolubility of all components is good, the dispersion is uniform, the stability is better, and other special technologies are not required for treating; all components are remarkable in synergistic effect, a water-proof effect is good, no delamination is generated when the water content reaches 5 percent or below, a metal anti-corrosion effect is strong, the oxidation resistance is good, low temperature phase separation can be resisted, the vehicles are easy to start at a low temperature and cannot generate air resistance at a high temperature, combustion is sufficient, and the power performance can be greatly increased; all component raw materials are easy to obtain and low in cost and are energy-saving and environment-friendly.

A method and equipment for rapidly stabilizing catalyst activity using heavy fuel oil, comprising: (1) The catalyst enters the bottom of a dilute-phase combustion tube from a fluidized bed reactor, and the dilute-phase combustion tube is provided with two or more feed ports from bottom to top , spraying oxygen-containing gas and heavy fuel oil in sequence, the catalyst first mixes with oxygen-containing gas and flows upwards, then mixes with heavy fuel oil, and then replenishes oxygen-containing gas; (2) the high-temperature gas and catalyst after combustion reaction The outlet of the dilute phase combustion tube enters the fluidized bed reactor; (3) the high temperature catalyst in the fluidized bed reactor reacts with water vapor to reduce the activity, and the catalyst separated from the top of the catalyst aging device returns to the fluidized bed reactor; (4) the catalyst is aged After completion, shut down and unload the catalyst. and a device for implementing the method. By adopting the aging method and equipment provided by the invention, the activity of the catalyst can be quickly reduced to a stable level, the activity of the aged catalyst is evenly distributed, and the distribution of products used for catalytic cracking reaction of hydrocarbon oil is obviously improved.

The invention provides a preparation method of rare earth oxide doped tungsten powder, belonging to a technical field of rare earth refractory metal material. The process flow is that: firstly, a precursor powder is obtained by adopting low-temperature combustion synthesis, wherein the precursor powder is a uniform mixture of rare earth oxide (at least one of Sc2O3, Y2O3, La2O3, CeO2, ZrO2, Gd2O3 and Eu2O3) and tungsten oxide; secondly, the precursor powder undergoes calcination in a muffle furnace; lastly, two-step reduction is carried out in the atmosphere of hydrogen or dissociated ammonia. Easy-reduction tungsten oxide is reduced to tungsten matrix powder, and the rare earth oxide that can not be reduced is reserved, thereby the rare earth oxide doped tungsten powder is obtained. The content of the rare earth oxide in the rare earth oxide doped tungsten powder is 0.05-35 wt%. The advantage of the invention is that target element and organic carbon source are capable of forming a highly dispersed system, and particle sizes of the obtained oxide are uniform and fine. The method is suitable for industrialization production because of low cost of raw materials, quick reaction speed, low energy consumption and simple technology.

The invention relates to a novel sulfuretted hydrogen incineration furnace which comprises a cavity furnace shell. An air inlet is formed in one end of the cavity furnace shell, an air outlet is formed in the other end of the cavity furnace shell, a sulfuretted hydrogen nozzle is formed in the outer end of the air inlet, a heat insulation layer is arranged on the inner wall of the cavity furnace shell, a fire retardant layer is arranged on the inner wall of the heat insulation layer, two heat storage walls are arranged in the cavity furnace shell, one heat storage wall close to the sulfuretted hydrogen nozzle is the first heat storage wall, the other heat storage wall is the second heat storage wall, the cavity furnace shell is divided into three sections by the two heat storage walls, a secondary temperature adjustment and oxygen supplementary air pipe is arranged at the position, close to the end of the first heat storage wall, between the two heat storage walls, a combustion channel flame detection device, an explosion door and a fire observation hole are arranged on the first section of the cavity furnace shell, a maintenance door is arranged on the second section of the cavity furnace shell, and a negative pressure transmitter and a smoke outlet flame detection device are arranged on the third section of the cavity furnace shell. The novel sulfuretted hydrogen incineration furnace is full in combustion, stable in flame in the furnace, safe and reliable, and saves cost.